PC/ABS高温下耐疲劳性能的影响因素研究  

Study on influence factors on high⁃temperature fatigue resistance PC/ABS alloy

作　　者：李明昆 林荣涛 LI Mingkun;LIN Rongtao(National-certified Enterprise Technology Center,Kingfa Science and Technology Co,Ltd,Guangzhou 510663,China)

机构地区：[1]金发科技股份有限公司,广州510663

出　　处：《中国塑料》2024年第12期77-80,共4页China Plastics

摘　　要：从丙烯腈-丁二烯-苯乙烯三元共聚物(ABS)相、聚碳酸酯(PC)相以及相容剂三方面讨论了PC/ABS合金在90℃高温下的耐疲劳性能。结果表明,橡胶是导致材料耐疲劳性能差的原因;提高苯乙烯-丙烯腈二元共聚物(St-An)相对聚丁二烯(PB)的比例可有效地提高耐疲劳性能;提高PC含量或适当调整PC黏度也可提升合金的耐疲劳性能;相容剂类型对耐疲劳性能有影响,聚丙烯接枝马来酸酐(PP-g-MAH)的效果优于其他相容剂。The fatigue-resistance performance of PC/ABS alloys under a high temperature of 90ºC were investigated in the terms of acrylonitrile-butadiene-styrene terpolymer(ABS)phase,polycarbonate(PC)phase,and compatilizers.The results indicated that the rubber phase in the alloy was the main factor that weakens the fatigue resistance.It was beneficial to improve the property by increasing the mass ratio of styrene-acrylonitrile binary copolymer to polybutadiene in the alloy.Meanwhile,increasing the proportion of PC or reducing the viscosity of PC was capable of strengthening the fatigue-resistant property.There was an influence on the fatigue resistance from the addition of different types of compa-tilizer,in which polypropylene-grafted-maleic Anhydride(PP-g-MAH)exhibited optimal performance.

关 键 词：聚碳酸酯 丙烯腈-丁二烯-苯乙烯三元共聚物 合金 高温耐疲劳性能 相容剂 汽车 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]